<?php

/**
 * This is the model class for table "qa_questions".
 *
 * The followings are the available columns in table 'qa_questions':
 * @property integer $id
 * @property string $title
 * @property string $value
 */
class Question extends QaActiveRecord {

	/**
	 * Returns the static model of the specified AR class.
	 * @param string $className active record class name.
	 * @return Question the static model class
	 */
	public static function model($className = __CLASS__) {
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName() {
		return 'questions';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules() {
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('title, value', 'required'),
			array('title', 'length', 'max'=>255),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('id, title, value', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations() {
		return array(
			'creator'=>array(
				self::BELONGS_TO,
				Yii::app()->getModule('qa')->userClass,
				'createdBy'
			),
			'updater'=>array(
				self::BELONGS_TO,
				Yii::app()->getModule('qa')->userClass,
				'updatedBy'
			),
			'answers'=>array(
				self::HAS_MANY,
				'Answer',
				'questionId',
				'order'=>'createdAt',
				'condition'=>'parentId = 0',
			),
			'answerCount'=>array(self::STAT, 'Answer', 'questionId'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels() {
		return array(
			'id'=>'ID',
			'title'=>'Title',
			'value'=>'Question',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models
	 * based on the search/filter conditions.
	 */
	public function search() {
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria = new CDbCriteria;

		$criteria->compare('id', $this->id);
		$criteria->compare('title', $this->title, true);
		$criteria->compare('value', $this->value, true);

		return new CActiveDataProvider($this, array(
				'criteria'=>$criteria,
			));
	}

	public function preserve() {
		$this->preserved = true;
		$this->save();
	}

	public function recall() {
		$this->preserved = false;
		$this->save();
	}

}